Die for layered pouring of sandwich thermal insulation wallboard

Abstract

The utility model discloses a mold for layered pouring of a sandwich thermal insulation wallboard, relates to a template, and solves the problems that the time for layered pouring of the sandwich thermal insulation wallboard is long, and a sandwich thermal insulation layer is not easy to fix during pouring. According to the technical scheme, the mold for layered pouring of the sandwich heat preservation wallboard comprises side mold plates, the side mold plates are vertically arranged and define a pouring cavity with the top open, an upper layer connecting pipe and a lower layer connecting pipe are arranged in the pouring cavity, the connecting pipes are fixedly connected to the side mold plates, the upper layer connecting pipe and the lower layer connecting pipe are both horizontally arranged and divide the pouring cavity into three layers of structures, and the three layers of connecting pipes are fixedly connected to the side mold plates. The three-layer structure corresponds to a pre-pouring layer, a middle layer and a post-pouring layer of the sandwich heat preservation wallboard. The middle layer is directly laid between the upper layer connecting pipe and the lower layer connecting pipe, the connecting pipes play a role in fixing and limiting the middle layer, and vertical displacement of the middle layer in the pouring period is avoided. The connecting pipes are free of disassembly, through holes are formed in the sandwich heat preservation wallboards, and pipelines can be arranged. The utility model is used for layered pouring of the sandwich thermal insulation wallboard.

Description

Technical Field

[0001] This utility model relates to a template, specifically a mold for layered casting of sandwich insulation wall panels. Background Technology

[0002] Precast concrete sandwich insulated wall panels, also known simply as sandwich insulated wall panels, have a three-layer structure: an inner layer, a middle layer, and an outer layer. The inner layer, adjacent to the interior, is the inner leaf concrete wall panel, also simply called the inner leaf wall panel. The outer layer, adjacent to the exterior, is the outer leaf concrete wall panel, also simply called the outer leaf wall panel. The middle layer, located between the inner and outer layers, provides insulation and is the sandwich insulation layer. Several tie rods are also installed between the inner and outer layers to improve the overall integrity of the three-layer structure of the sandwich insulated wall panel.

[0003] There are two ways to pour sandwich insulation wall panels: integral pouring and layered pouring.

[0004] During monolithic casting, the plane corresponding to the sandwich insulation wall panel is vertical. The middle layer is fixed inside the mold, and then the inner and outer layers are cast simultaneously. The advantage of monolithic casting is its speed, but the disadvantages are that the mold making requirements are high and the concrete is difficult to vibrate and compact.

[0005] In layered pouring, the plane corresponding to the sandwich insulation wall panel is horizontal. Either the inner or outer layer is poured first (the initial pour). After the initial pour reaches a certain strength, the intermediate layer is laid on top of it and fixed. Then, the next layer (the subsequent pour) is poured on top of the intermediate layer. The advantage of layered pouring is that it is easy to set up formwork and facilitates concrete vibration. The main disadvantage is the long pouring time, as the intermediate layer and subsequent pour must be installed and poured only after the initial pour has reached a certain strength. If, in order to shorten the pouring time, the intermediate layer is installed and the subsequent pour is poured before the initial pour has reached sufficient strength, the initial pour cannot adequately support the insulation material because the intermediate layer is a low-density, low-strength insulation material. The insulation material is very prone to cracking. When vibrating the concrete of the subsequent pour, the insulation material is likely to float to the surface and enter the subsequent pour, and some insulation material may even embed itself in the initial pour, affecting the quality of the sandwich insulation wall panel. After the first layer reaches a certain strength, the intermediate layer is installed and the subsequent layer is poured. The first layer can support the intermediate layer well, but the intermediate layer is still difficult to fix. The intermediate layer is easily broken and floated when disturbed by the vibration of the subsequent concrete, resulting in insufficient thickness of the subsequent layer.

[0006] Furthermore, when sandwich insulated wall panels are poured in layers, marks are usually made around the formwork to control the thickness of the first layer. During pouring, the thickness of the first layer is controlled by observing whether its surface is flush with the marks. This method relies on visual inspection and has a large margin of error, especially for large sandwich insulated wall panels. Piping may need to be installed inside the sandwich insulated wall panels. Since both the inner and outer layers are reinforced concrete structures, it is difficult to create grooves for the piping. Often, the piping can only be placed on the inner or outer surface of the sandwich insulated wall panel. Utility Model Content

[0007] This utility model provides a mold for layered casting of sandwich insulation wall panels, which solves the problems of long casting time and difficulty in fixing the sandwich insulation layer during casting.

[0008] The technical solution adopted in this utility model is: a mold for layered casting of sandwich insulation wall panels, including side templates, the side templates are arranged vertically and form a casting cavity with an open top, two layers of connecting pipes are arranged in the casting cavity, the connecting pipes are fixedly connected to the side templates, the two layers of connecting pipes are arranged horizontally and divide the casting cavity into three layers, the three layers of the structure correspond to the first layer, the middle layer and the last layer of the sandwich insulation wall panel respectively.

[0009] Sandwich insulation wall panels are generally rectangular panels. Furthermore, there are four side formwork panels, which form a casting cavity in the shape of a right quadrangular prism. The height of each side formwork panel is equal.

[0010] To facilitate the formation of a pouring cavity by the four side formworks, the four side formworks are further divided into two long side formworks and two wide side formworks. The two long side formworks are flat and identical, and the two wide side formworks are identical and form a [ shape in the horizontal cross section. The bent parts at both ends of the wide side formworks abut against the long side formworks and are connected by bolts. The bent parts at both ends of the wide side formworks are located outside the pouring cavity.

[0011] To shorten the length of the connecting pipe and improve its stability, specifically: the connecting pipe is connected between two long side templates.

[0012] To facilitate the arrangement of connecting pipes and to form a straight channel inside the sandwich insulation wall panel, each layer of connecting pipes includes at least two connecting pipes, and each connecting pipe is in a straight line.

[0013] There are multiple connecting pipes on the same floor. These pipes can be arranged in the same direction or in different directions. Specifically, the connecting pipes on the same floor can be arranged parallel to each other and spaced apart, or they can be arranged spaced apart in two mutually perpendicular directions on the horizontal plane.

[0014] To reduce the impact of the two layers of connecting pipes on the pouring of the first layer, the following measures are taken: the connecting pipes in the same layer are arranged parallel to each other and at equal intervals, and the connecting pipes of the upper layer correspond one-to-one with the connecting pipes of the lower layer in the vertical direction.

[0015] To further enhance the strength of the connecting pipe and enable it to more stably support and fix the intermediate layer, a support rod is also inserted inside the connecting pipe.

[0016] To further improve the stability of the support rod, both ends of the support rod are located outside the casting cavity, and at least one end of the support rod is threaded and fastened to the side template with a nut.

[0017] Specifically: the connecting pipe is a plastic pipe. For example, the connecting pipe is a PVC pipe.

[0018] Specifically: the support rod is a metal rod. For example, the support rod is a steel bar.

[0019] The beneficial effects of this invention are as follows: When pouring the first layer of the sandwich insulation wall panel in layers, the lower connecting pipe can be used as the upper limit of the pouring, which helps to accurately control the pouring thickness of the first layer. The middle layer is laid directly between the upper and lower connecting pipes, which also serve to fix and limit the middle layer, preventing vertical displacement of the middle layer during pouring. The lower connecting pipe provides auxiliary support for the middle layer, thus allowing for rapid installation of the middle layer and pouring of the subsequent layers after the first layer is poured, shortening the prefabrication time of the sandwich insulation wall panel. The connecting pipes do not need to be removed, and a through hole is finally formed inside the sandwich insulation wall panel, which can be used to lay pipelines. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0021] Reference numerals: Side template 1, long side template 1a, wide side template 1b, connecting pipe 2, support rod 3. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the mold for layered casting of sandwich insulation wall panels of this utility model includes a side template 1, which is arranged vertically and forms a casting cavity with an open top. Two layers of connecting pipes 2 are arranged inside the casting cavity, and the connecting pipes 2 are fixedly connected to the side template 1. Both the upper and lower layers of connecting pipes 2 are arranged horizontally and divide the casting cavity into a three-layer structure, which corresponds to the first, middle, and last layers of the sandwich insulation wall panel, respectively.

[0024] The shape of the pouring cavity matches the shape of the sandwich insulation wall panel to be poured. Side formwork 1 can be a flat plate, meaning its surface is planar; or it can be curved. When side formwork 1 is flat, at least three side formworks are required to form an open-top pouring cavity. When side formwork 1 is curved, one or more side formworks are required, as long as they form an open-top pouring cavity. Sandwich insulation wall panels are generally rectangular, therefore, there are generally four side formworks. These four side formworks are connected to form a pouring cavity in the shape of a right quadrangular prism, such as... Figure 1 As shown. In Figure 1 In the illustrated embodiment, the four side templates 1 consist of two long-side side templates 1a and two wide-side side templates 1b. The two long-side side templates 1a are flat and identical, while the two wide-side side templates 1b are identical and form a [-shape in horizontal cross-section]. Both ends of the wide-side side templates 1b are bent at 90° to form bends, increasing the contact area between the wide-side side templates 1b and the long-side side templates 1a, facilitating their connection and fixation. To facilitate the connection and disassembly of the wide-side side templates 1b and the long-side side templates 1a, the bends at both ends of the wide-side side templates 1b abut against the long-side side templates 1a and are connected by bolts. To prevent the bends of the wide-side side templates 1b from affecting the shape of the sandwich insulation wall panel, the bends at both ends of the wide-side side templates 1b are located outside the casting cavity. The height of each side template 1 is not less than the thickness of the sandwich insulation wall panel. For example, the height of each side template 1 is equal, and the height of the side template 1 is consistent with the thickness of the sandwich insulation wall panel.

[0025] The sandwich insulated wall panel is constructed in layers. First, a reinforcing mesh for the first layer is installed on a level surface, and connecting reinforcing bars for linking the first and subsequent layers are tied. Then, the panel is placed on the level surface, with the reinforcing mesh of the first layer located below the pouring cavity. The first layer is then poured, ensuring that its top surface just covers the lower connecting pipe 2. The lower connecting pipe 2 accurately controls the thickness of the first layer. After the first layer is poured, an intermediate layer, made of foamed board, is laid between its top surface and the upper connecting pipe 2. Due to the influence of the connecting reinforcing bars, the foamed board is laid in multiple pieces, and the gaps between the foamed boards can be filled with foaming material to form a continuous and complete intermediate layer. The upper and lower connecting pipes 2 fix and limit the intermediate layer, ensuring its stability and integrity throughout the construction process. Because the lower connecting pipe 2 and the first layer jointly support the intermediate layer, the intermediate layer can be installed immediately after the first layer is poured, followed by the pouring of the subsequent layer, saving time. After the construction of the complete intermediate layer is completed, the steel mesh for the post-cast layer is installed on the top surface of the intermediate layer, and the steel mesh is tied and fixed to the connecting steel bars before the post-cast layer is poured.

[0026] There are multiple connecting pipes 2 on the same floor. These connecting pipes 2 can be distributed individually, meaning they are not interconnected. For example, see [link to example]. Figure 1 The connecting pipes 2 on the same floor can also be arranged in a mesh pattern, such as a rectangular or diamond-shaped grid. To facilitate the layout of pipelines using the connecting pipes 2, each connecting pipe 2 is arranged in a straight line. Considering the supporting role of each connecting pipe 2, and to reduce the impact of the connecting pipes 2 on the construction of the pre-cast layer, the connecting pipes 2 on the same floor are preferably arranged parallel to each other and spaced apart, with equal spacing, such as... Figure 1 As shown. The upper and lower layers of connecting pipes 2 can be staggered. For example, the connecting pipes 2 in the same layer are preferably parallel to each other, while the upper and lower layers of connecting pipes 2 are not parallel. To reduce the impact of the two layers of connecting pipes 2 on the pouring of the first layer, the connecting pipes 2 in the same layer are parallel to each other and spaced at equal intervals, with the upper layer connecting pipes 2 corresponding to the lower layer connecting pipes 2 in the vertical direction. When the connecting pipes 2 in the same layer are parallel to each other and spaced at intervals, the connecting pipes 2 are placed between the side formwork 1 that are closer together. This can shorten the length of the connecting pipes 2 and improve their stability. For example, when the side formwork 1 consists of four pieces forming a rectangular pouring cavity, the connecting pipe 2 connects between two long side formwork 1a, such as... Figure 1 As shown.

[0027] The connecting pipe 2 is ultimately cast into the sandwich insulation wall panel. To improve the strength of the connecting pipe 2 and enable it to more stably support and fix the intermediate layer, a support rod 3 is also inserted through the connecting pipe 2. The support rod 3 is removed and recycled later, and is generally a metal rod, such as a steel bar. The connecting pipe 2 is generally a plastic pipe, such as a PVC pipe. To improve the stability of the support rod 3, both ends of the support rod 3 are located outside the casting cavity, and at least one end of the support rod 3 is threaded and fastened to the side template 1 with a nut.

Claims

1. A mold for layered casting of sandwich insulation wall panels, comprising side templates (1), wherein the side templates (1) are arranged vertically and form a casting cavity with an open top, characterized in that: Two layers of connecting pipes (2) are arranged inside the casting cavity. The connecting pipes (2) are fixedly connected to the side template (1). The two layers of connecting pipes (2) are arranged horizontally and divide the casting cavity into three layers. The three layers correspond to the first layer, the middle layer and the last layer of the sandwich insulation wall panel, respectively.

2. The mold for layered casting of sandwich insulation wall panels as described in claim 1, characterized in that: The side formwork (1) consists of four pieces, which form a casting cavity in the shape of a right quadrangular prism. The height of each side formwork (1) is equal.

3. The mold for layered casting of sandwich insulation wall panels as described in claim 2, characterized in that: The four side templates (1) are two long side templates (1a) and two wide side templates (1b). The two long side templates (1a) are flat and identical. The two wide side templates (1b) are identical and have a [ shape in the horizontal cross section. The bent parts at both ends of the wide side templates (1b) abut against the long side templates (1a) and are connected by bolts. The bent parts at both ends of the wide side templates (1b) are located outside the pouring cavity.

4. The mold for layered casting of sandwich insulation wall panels as described in claim 3, characterized in that: The connecting pipe (2) is connected between the two long side templates (1a).

5. The mold for layered casting of sandwich insulation wall panels as described in any one of claims 1 to 4, characterized in that: Each layer of connecting pipe (2) includes at least two connecting pipes (2), and each connecting pipe (2) is in a straight line.

6. The mold for layered casting of sandwich insulation wall panels as described in claim 5, characterized in that: The connecting pipes (2) on the same floor are arranged parallel to each other and spaced apart, or the connecting pipes (2) on the same floor are arranged spaced apart in two mutually perpendicular directions on the horizontal plane.

7. The mold for layered casting of sandwich insulation wall panels as described in claim 5, characterized in that: The connecting pipes (2) on the same layer are parallel to each other and are arranged at equal intervals. The connecting pipes (2) on the upper layer correspond one-to-one with the connecting pipes (2) on the lower layer in the vertical direction.

8. The mold for layered casting of sandwich insulation wall panels as described in claim 5, characterized in that: A support rod (3) also runs through the connecting pipe (2).

9. The mold for layered casting of sandwich insulation wall panels as described in claim 8, characterized in that: Both ends of the support rod (3) are located outside the casting cavity. At least one end of the support rod (3) is threaded and fastened to the side template (1) by a nut.

10. The mold for layered casting of sandwich insulation wall panels as described in claim 8, characterized in that: The connecting pipe (2) is a plastic pipe, and the support rod (3) is a metal rod.

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